<template>
    <div>
        <!-- 面包屑导航区域 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>用户管理</el-breadcrumb-item>
        <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图 -->
        <el-card>
        <!-- 搜索与添加区域 -->
        <el-row :gutter="20">
            <el-col :span="8">
                <el-input placeholder="请输入内容" v-model="queryinfo.query" clearable @clear='getUserList'>
                    <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                </el-input>
            </el-col>
            <el-col :span="3">
                <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
            </el-col>
        </el-row>
        <!-- 用户列表页 -->
        <el-table :data="userList" border stripe>
            <el-table-column type="index"></el-table-column>
            <el-table-column label="姓名" prop="username"></el-table-column>
            <el-table-column label="邮箱" prop="email"></el-table-column>
            <el-table-column label="电话" prop="mobile"></el-table-column>
            <el-table-column label="角色" prop="role_name"></el-table-column>
            <el-table-column label="状态" prop="mg_stste">
                <template slot-scope="scope">
                  <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
                  </el-switch>
                </template>
            </el-table-column>
            <el-table-column label="操作">
                <template slot-scope="scope">
                    <!-- 修改按钮 -->
                  <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
                  <!-- 删除按钮 -->
                  <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
                  <!-- 分配权限按钮 -->
                  <el-tooltip :enterable='false' effect="dark" content="分配角色" placement="top">
                   <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
                    </el-tooltip>
                </template>
            </el-table-column>
        </el-table>
        <!-- 分页区域 -->
        <el-pagination
            @size-change="handleSizeChange"
            @current-change="handleCurrentChange"
            :current-page="queryinfo.pagenum"
            :page-sizes="[1, 2, 5, 10]"
            :page-size="queryinfo.pagesize"
            layout="total, sizes, prev, pager, next, jumper"
            :total="total">
            </el-pagination>
        </el-card>
        <!-- 添加用户的对话框 -->
        <el-dialog
            title="添加用户"
            :visible.sync="addDialogVisible"
            width="50%" @close='addDialogClosed'>
            <!-- 内容主体区域 -->
            <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <!-- 底部区域 -->
            <span slot="footer" class="dialog-footer">
                <el-button @click="addDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
        </el-dialog>
         <!-- 修改用户对话框 -->
           <el-dialog
                title="修改用户"
                :visible.sync="editDialogVisible"
                width="50%">
                
                <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
                <el-form-item label="用户名">
                    <el-input v-model="editForm.username" disabled></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="editForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机号" prop="mobile">
                    <el-input v-model="editForm.mobile"></el-input>
                </el-form-item>
                </el-form>
                <span slot="footer" class="dialog-footer">
                    <el-button @click="editDialogVisible = false">取 消</el-button>
                    <el-button type="primary" @click="editUserInfo">确 定</el-button>
                </span>
                </el-dialog>
                 <!-- 分配角色的对话框 -->
            <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClosed">
            <div>
                 <p>当前的用户：{{userInfo.username}}</p>
                  <p>当前的角色：{{userInfo.role_name}}</p>
                  <p>分配新角色：
                <el-select v-model="selectedRoleId" placeholder="请选择">
                    <el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id">
                    </el-option>
                </el-select>
                </p>
            </div>
            <span slot="footer" class="dialog-footer">
                <el-button @click="setRoleDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
            </span>
            </el-dialog>
    </div>
</template>
<script>
import { async } from 'q'
export default {
    data(){
        // 自定义邮箱验证规则
        var checkEmail=(rule,value,cb)=>{
            const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
            if(regEmail.test(value)){
                return cb()
            }
            cb(new Error('请输入正确的邮箱'))
        }
        // 自定义手机验证规则
         var checkMobile=(rule,value,cb)=>{
             const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
             if(regMobile.test(value)){
                return cb()
            }
            cb(new Error('请输入正确的手机号'))
         }
        return{
           queryinfo:{
                query:'',
                pagenum:1,
                pagesize:2
           },
           userList:[],
           total:0,
        //    控制对话框显示与隐藏
           addDialogVisible:false,
           //添加用户表单数据
           addForm:{
                username:'',
                password:'',
                email:'',
                mobile:''
            },
             //添加用户表单数据验证规则
            addFormRules:{
                username:[
                {required:true,
                message:'请输入用户名',trigger:'blur'},{min:3,max:10,message:'用户名长度在3-10个字符之间',trigger:'blur'}
                ],
                password:[
                    {required:true,
                message:'请输入密码',trigger:'blur'},{min:6,max:15,message:'用户名长度在6-15个字符之间',trigger:'blur'}
                ],
                email:[
                    {required:true,
                message:'请输入邮箱',trigger:'blur'},
                {validator:checkEmail,trigger:'blur'}
                ],
                mobile:[
                    {required:true,
                message:'请输入手机号',trigger:'blur'},
                 {validator:checkMobile,trigger:'blur'}
                ]
            },
            // 控制修改按钮对话框的按钮
            editDialogVisible:false,
            // 查询到的用户id数据
            editForm:{},
            editFormRules:{
                 email:[
                  {required:true,
                message:'请输入邮箱',trigger:'blur'},{validator:checkEmail,trigger:'blur'}
              ],
              mobile:[
                    {required:true,
                message:'请输入手机号',trigger:'blur'},{validator:checkMobile,trigger:'blur'}
                ]
            },
             // 控制分配角色对话框的显示与隐藏
            setRoleDialogVisible: false,
                 // 需要被分配角色的用户信息
            userInfo: {},
                 // 所有角色的数据列表
            rolesList: [],
                // 已选中的角色Id值
            selectedRoleId: ''
        }
    },
    created(){
    this.getUserList()
    },
    methods:{
       async getUserList(){
           const{data:res}=await this.$http.get('users',{params:this.queryinfo})
           if(res.meta.status!==200){
               return this.$message.error('获取用户列表失败')
           }
           this.userList=res.data.users
           this.total=res.data.total
        },
        // 监听handleSizeChange改变的事件
        handleSizeChange(newsize){
            this.queryinfo.pagesize=newsize
            this.getUserList()
        },
        // 监听页码值改变事件
        handleCurrentChange(newPage){
             this.queryinfo.pagenum=newPage
            this.getUserList()
        },
        //监听swich开关状态改变
       async userStateChanged(userinfo){
            const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
        )
        if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败！')
        }
        this.$message.success('更新用户状态成功！')
        },
        // 监听添加用户对话框的关闭事件
        addDialogClosed(){
            this.$refs.addFormRef.resetFields()
        },
         addUser(){
            this.$refs.addFormRef.validate(async valid=>{
                if(!valid)return
                const {data:res}=await this.$http.post('users',this.addForm)
                if(res.meta.status!==201){
                    this.$message.error('添加用户失败')
                }
                 this.$message.success('添加用户成功')
                 this.addDialogVisible=false
                 this.getUserList()
            })
        },
         async showEditDialog(id){
             console.log(id);
           const{data:res}=await this.$http.get('users/'+id)
           if(res.meta.status!==200){
               return this.$message.error('查询用户信息失败!')
           }
           this.editForm=res.data
            this.editDialogVisible=true
        },
         // 修改用户信息并且提交
       editUserInfo() {       
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        // 发起修改用户信息的数据请求
        const { data: res } = await this.$http.put(
          'users/' + this.editForm.id,      
          {
            email: this.editForm.email,
            mobile: this.editForm.mobile,
          },
        )
        if (res.meta.status !== 200) {
          return this.$message.error('更新用户信息失败！')
        }

        // 关闭对话框
        this.editDialogVisible = false
        // 刷新数据列表
        this.getUserList()
        // 提示修改成功
        this.$message.success('更新用户信息成功！')
      })
    },
    // 根据id删除对应的用户
     async removeUserById(id) {
      // 弹框询问用户是否删除数据
      const confirmResult = await this.$confirm(
        '此操作将永久删除该用户, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(err => err)
      // 如果用户确认删除，则返回值为字符串 confirm
      // 如果用户取消了删除，则返回值为字符串 cancel
      // console.log(confirmResult)
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }

      const { data: res } = await this.$http.delete('users/' + id)

      if (res.meta.status !== 200) {
        return this.$message.error('删除用户失败！')
      }
      this.$message.success('删除用户成功！')
      this.getUserList()
    },
     // 展示分配角色的对话框
    async setRole(userInfo) {
      this.userInfo = userInfo

      // 在展示对话框之前，获取所有角色的列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败！')
      }

      this.rolesList = res.data

      this.setRoleDialogVisible = true
    },
     // 点击按钮，分配角色
    async saveRoleInfo() {
      if (!this.selectedRoleId) {
        return this.$message.error('请选择要分配的角色！')
      }

      const { data: res } = await this.$http.put(
        `users/${this.userInfo.id}/role`,
        {
          rid: this.selectedRoleId
        }
      )

      if (res.meta.status !== 200) {
        return this.$message.error('更新角色失败！')
      }

      this.$message.success('更新角色成功！')
      this.getUserList()
      this.setRoleDialogVisible = false
    },
    // 监听分配角色对话框的关闭事件
    setRoleDialogClosed() {
      this.selectedRoleId = ''
      this.userInfo = {}
    }
    }
}

</script>
<style lang="less" scoped>
    
</style>
